Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F Dobson Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dobson Ltd W E & F, WE&F Dobson LtdfiledCriticalDobson Ltd W E & F
Publication of ES344005A1publicationCriticalpatent/ES344005A1/en
A system for supporting the roof of a mine of the aforementioned type, in which for a series of the roof supports is provided, a guide on the end of the conveyor of the extension rod of each of the push and pull pistons of the supports, the conveyor being formed with a guide rail with which the guides have a guide connection, and the guides are interconnected by means of interconnection to facilitate a train of guides, so that the adjustment of all the guides for the series of supports can be made by adjusting the guide train. (Machine-translation by Google Translate, not legally binding)
ES344005A1966-08-161967-08-10A system to support the ceiling of a mine. (Machine-translation by Google Translate, not legally binding)
ExpiredES344005A1
(en)